giant vegetables it's easy to eat like a giant... ♪ and feel like a green giant. ♪ ho ho ho ♪ green giant bill: there are new questions whether or not there will ever be justice for the four americans killed in the benghazi terror attack. despite the president vowing action one of the only suspects in custody has been let free for lack of evidence. that's a setback now. it comes as we're getting word that secretary of state hillary clinton will testify about benghazi a little later this month but what about today? republican senator johnny isakson out of georgia. senator, good morning to you and thank you for your time here. >> good morning, bill. bill: can we now categorize this investigation as a cold case? >> well, certainly with the release of ali harz sigh, the lassus speck in custody -- harzi. the fact we didn't have investigators on the ground for two weeks until we acknowledged it was a terrorist attack, not a spontaneous attack. information like that goes cold pretty fast. there are questions secretary of state clinton must ask, must answer and john brennan too. why the inf